<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card class="box-card">
      <!-- 搜索与议添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="userlist" style="width: 100%" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 设置权限 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="设置权限"
              placement="top"
              :enterable="false"
            >
              <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>

      <!-- 添加用户对话框 -->
      <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
        <!-- 对话框主体区域 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 对话框底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 修改用户对话框 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed"
      >
        <!-- 对话框主体区域 -->
        <el-form ref="editFormRef" label-width="70px" :model="editForm" :rules="editFormRules">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 对话框底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    //验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        return cb()
      }
      //返回一个错误提示
      cb(new Error('请输入合法的邮箱'))
    }
    //验证手机号码的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return cb()
      }
      //返回一个错误提示
      cb(new Error('请输入合法的手机号码'))
    }

    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: '',
        //当前页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total: 0,

      // 控制添加用户对话框的显示和隐藏
      addDialogVisible: false,

      //修改用户对话框的显示和隐藏
      editDialogVisible: false,

      // 表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },

      //查询到的用户信息对象
      editForm: {},

      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '用户名在6~15个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            message: '邮箱格式不正确，请重新输入',
            trigger: 'blur'
          }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          {
            validator: checkMobile,
            message: '手机号码不正确，请重新输入',
            trigger: 'blur'
          }
        ]
      },

      //添加用户表单验证规则
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            message: '邮箱格式不正确，请重新输入',
            trigger: 'blur'
          }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          {
            validator: checkMobile,
            message: '手机号码不正确，请重新输入',
            trigger: 'blur'
          }
        ]
      }
    }
  },

  created() {
    this.getUserList()
  },

  methods: {
    //查询数据
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res)
    },

    //监听 pagesize 改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },

    //监听页码值 改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },

    //监听switch开关状态的改变
    async userStateChange(userinfo) {
      console.log(userinfo.id)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },

    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },

    //点击按钮，添加新用户
    addUser() {
      //预校验
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        //可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        //隐藏添加用户的对话框
        this.addDialogVisible = false
        this.getUserList()
      })
    },

    //展示用户编辑的对话框
    async showEditDialog(id) {
      this.editDialogVisible = true
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询失败')
      }
      this.editForm = res.data
    },

    //修改用户对话框重置
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },

    //修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        //发起修改用户请求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        )
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        //隐藏添加用户的对话框
        this.editDialogVisible = false
        this.getUserList()
      })
    },

    //删除用户
    async removeUserById(id) {
      //询问是否删除
      const confirmResult = await this.$confirm(
        '此操作将永久删除用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      //如果用户确认删除，则返回值为字符串confirm
      //如果用户取消删除则返回值为字符创cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败')
      }
      this.$message.success('删除成功')
      this.getUserList()
    }
  }
}
</script>

<style lang="less" scoped>
</style>